Which is stronger--nature or nurture? The latest science says genes and your experience interact for your whole life

The perennial debate about nature and nurture--which is the more potent shaper of the human essence?--is perennially rekindled. It flared up again in the London Observer of Feb. 11, 2001. REVEALED: THE SECRET OF HUMAN BEHAVIOR, read the banner headline. ENVIRONMENT, NOT GENES, KEY TO OUR ACTS. The source of the story was Craig Venter, the self-made man of genes who had built a private company to read the full sequence of the human genome in competition with an international consortium funded by taxes and charities. That sequence--a string of 3 billion letters, composed in a four-letter alphabet, containing the complete...